Calls a method of an object, substituting another object for the current object.
function call([thisObj : Object [, arg1[, arg2[, ... [, argN]]]]])
Optional. The object to be used as the current object.
arg1, arg2, ..., argN
Optional. List of arguments to be passed to the method.
The call method is used to call a method on behalf of another object. The call method allows you to change the object context of a function from the original context to the new object specified by thisObj.
If thisObj is not supplied, the global object is used as thisObj.